4066420540 has 72 divisors (see below), whose sum is σ = 10567942560. Its totient is φ = 1286947584.

The previous prime is 4066420499. The next prime is 4066420541. The reversal of 4066420540 is 450246604.

4066420540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4066420541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62275 + ... + 109594.

It is an arithmetic number, because the mean of its divisors is an integer number (146776980).

Almost surely, 2^4066420540 is an apocalyptic number.

It is an amenable number.

4066420540 is an abundant number, since it is smaller than the sum of its proper divisors (6501522020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4066420540 is a wasteful number, since it uses less digits than its factorization.

4066420540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171911 (or 171896 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 4066420540 is about 63768.4917494526. The cubic root of 4066420540 is about 1596.1391991915.

The spelling of 4066420540 in words is "four billion, sixty-six million, four hundred twenty thousand, five hundred forty".